Powder Descaler is a dry acid cleaner formulated to remove rust and scale deposits.
Directions for Use and Dose Rates
The most effective descaling is accomplished by circulation.In the case of small components
the soak method in an immersion bath can be used. If the equipment to be cleaned is contaminated by oil, grease or sludge, then pre-cleaning with Tank cleaner or cleaner517 is necessery.
Depending on the extent of scaling, use a solution of 2.5-10%powder descaler . The solutionwill have a red colour which changes to yellow when 85% of the acid has been neutralised,whenever possible, the solution should be heated to 60ْC .Neutralized solutions can be reactivated by adding more powder descaler until the red colour reappears. This should not be done more than twice. Powder descler should be used on aluminium
After descaling the fixed pH of descaler solution shows the ending of descaling procedure.
Descaling of Boilers, Descaling of Diesel Engine cooling Systems,Condensers, Evaporators,Calorifiers, Heat Exchangers can be done by powder descaler.
The strength of the acid can be enhanced by adding 1 part sodium chloride (common salt)to 20 parts of powder descaler. If salt is not available, an acceptable alternative is to dissolve powder descaler in see water .After use of powder descaler a 0.5% solution of Alkalinity control in fresh water shoul be used for neutralization.
